Help Identify Mousepad

I found this pad for $10, and I thought why not, it's been a while since I've used a heavily textured pad, and there's a larger version available if I happen to really like it. Forgive the quality.
I do quite like the surface. I suspect this is a func pad from the late 90's, maybe before it was known as func, seeing as the shape is identical to the f-series, and also the exact same sizes, and it comes from ACTLABS, just as func does. Can anyone confirm, and is the surface the same as the more recent F-series pads of the exact same shape, but with a rigid base? I'd really like to get my hands on one with this surface that is rigid.